The Wi-Fi “congestion crisis”: Regulatory criteria for assessing spectrum congestion claims

Vries, Jean Pierre De; Achtzehn, Andreas; Petrova, Marina; Mähönen, Petri

doi:10.1016/j.telpol.2014.06.005

Cited by 14 publications

(7 citation statements)

References 6 publications

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“…The current wireless communication network suffers from shortage of radio-frequency (RF) spectrum resources, hardly to reach giga-bit-per-second data rate. Hence, visible light communication (VLC) is rapidly emerging as a promising supplementary technology for RF communication [2][3][4], which can provide wide unlicensed spectrum resource (ranging from 400 to 800 THz) to alleviate the "Wi-Fi spectrum crunch" [5] issue. Additionally, using light-emitting-diode (LED) as VLC transmitter dramatically saves the cost compared to that of laser-based system, and thus making LED-based VLC system a popular and accessible wireless communication configuration.…”

Section: Introductionmentioning

confidence: 99%

High-speed visible light communication systems based on Si-substrate LEDs with multiple superlattice interlayers

Chen

Zhang

et al. 2021

PhotoniX

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High-speed visible light communication (VLC), as a cutting-edge supplementary solution in 6G to traditional radio-frequency communication, is expected to address the tension between continuously increased demand of capacity and currently limited supply of radio-frequency spectrum resource. The main driver behind the high-speed VLC is the presence of light emitting diode (LED) which not only offers energy-efficient lighting, but also provides a cost-efficient alternative to the VLC transmitter with superior modulation potential. Particularly, the InGaN/GaN LED grown on Si substrate is a promising VLC transmitter to simultaneously realize effective communication and illumination by virtue of beyond 10-Gbps communication capacity and Watt-level output optical power. In previous parameter optimization of Si-substrate LED, the superlattice interlayer (SL), especially its period number, is reported to be the key factor to improve the lighting performance by enhancing the wall-plug efficiency, but few efforts were made to investigate the influence of SLs on VLC performance. Therefore, to optimize the VLC performance of Si-substrate LEDs, we for the first time investigated the impact of the SL period number on VLC system through experiments and theoretical derivation. The results show that more SL period number is related to higher signal-to-noise ratio (SNR) via improving the wall-plug efficiency. In addition, by using Levin-Campello bit and power loading technology, we achieved a record-breaking data rate of 3.37 Gbps over 1.2-m free-space VLC link under given optimal SL period number, which, to the best of our knowledge, is the highest data rate for a Si-substrate LED-based VLC system.

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Section: Introductionmentioning

confidence: 99%

High-speed visible light communication systems based on Si-substrate LEDs with multiple superlattice interlayers

Chen

Zhang

et al. 2021

PhotoniX

View full text Add to dashboard Cite

show abstract

“…The current wireless communication network suffers from shortage of radio-frequency (RF) spectrum resources, hardly to reach giga-bit-per-second data rate. Hence, visible light communication (VLC) is rapidly emerging as a promising supplementary technology for RF communication [2][3][4], which can provide wide unlicensed spectrum resource (ranging from 400 to 800 THz) to alleviate the "Wi-Fi spectrum crunch" [5] issue. 10-Gbps VLC underwater link [9], but also offer effective white-light illumination thanks to its Watt-level output optical power and the competitive external quantum efficiency within all visible light spectrum.…”

Section: Introductionmentioning

confidence: 99%

High-speed Visible Light Communication Systems Based on Si-substrate LEDs with Multiple Superlattice Interlayers

Chen

Zhang

et al. 2021

Preprint

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High-speed visible light communication (VLC), as a cutting-edge supplementary solution in 6G to traditional radio-frequency communication, is expected to address the tension between continuously increased demand of capacity and currently limited supply of radio-frequency spectrum resource. The main driver behind the high-speed VLC is the presence of light emitting diode (LED) which not only offers energy-efficient lighting, but also provides a cost-efficient alternative to the VLC transmitter with superior modulation potential. Particularly, the InGaN/GaN LED grown on Si substrate is a promising VLC transmitter to simultaneously realize effective communication and illumination by virtue of beyond 10-Gbps communication capacity and Watt-level output optical power. In previous parameter optimization of Si-substrate LED, the superlattice interlayer (SL), especially its period number, is reported to be the key factor to determinate the output optical power by influencing the wall-plug efficiency. However, few efforts were made to investigate the influence of SLs on VLC performance. Therefore, we for the first time investigated the impact of the SL period number on VLC system through experiments and theoretical derivation. The result shows more SL period number is related to higher signal-to-noise ratio (SNR) via improving the wall-plug efficiency. Further, by using Levin-Campello bit and power loading technology, we achieved a record-breaking data rate of 3.37 Gbps over 1.2-m free-space VLC link under given optimal SL period number, which, to the best of our knowledge, is the highest data rate for a Si-substrate LED-based VLC system.

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“…Ela tem se mostrado como uma alternativa complementar a radiofrequência e pode solucionar a lotação do espectro. Essa ocupação da banda tem chamado atenção da academia [Vries et al 2014]. De fato, o número de dispositivos móveis conectadosà Internet vêm aumentado e isso leva a uma demanda maior por largura de banda e uma procura por tecnologias alternativas.…”

Section: Introductionunclassified

Tamanho Ótimo do Pacote em Comunicação por Luz Visível Sem Fio

Vieira¹,

Vieira²,

Vieira³

2020

Anais XXXVIII Simpósio Brasileiro De Redes De Computadores E Sistemas Distribuídos (SBRC 2020)

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A comunicação óptica sem fio (OWC) tem se mostrado como uma das tecnologias de comunicação complementares à radiofrequência que pode solucionar o problema de falta de espectro. Além disso, novas aplicações como Internet das Coisas e rede sensores sem fio podem se beneficiar do OWC. Com o aumento de dispositivos conectados, a eficiência de uso do canal se torna imprescindível. Este artigo apresenta a modelagem do canal e desenvolve um método para determinar a eficiência do uso do canal. O modelo foi validado experimentalmente com a plataforma OpenVLC 1.1. Com ele, é possível determinar o tamanho ótimo do pacote para maximizar a eficiência do uso canal. A correlação entre os dados experimentais e os dados do modelo foi de até 0,998.

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The Wi-Fi “congestion crisis”: Regulatory criteria for assessing spectrum congestion claims

Cited by 14 publications

References 6 publications

High-speed visible light communication systems based on Si-substrate LEDs with multiple superlattice interlayers

High-speed visible light communication systems based on Si-substrate LEDs with multiple superlattice interlayers

High-speed Visible Light Communication Systems Based on Si-substrate LEDs with Multiple Superlattice Interlayers

Tamanho Ótimo do Pacote em Comunicação por Luz Visível Sem Fio

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